October 2021
Beginner to intermediate
240 pages
4h 48m
English
Content preview from Text as Data
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Glossary
- Bag of words
- A name for the storage approach when documents are stored as a vector representation and so the words, sequences, and contexts are lost.
- Boolean operators
- Boolean operators are named after the mathematician and logician George Boole (1815–1864). The common Boolean operators are AND, OR, NOT. Boolean expressions consist of Boolean operators and always yield a true or false (binary) outcome and so are well-adapted to digital computing.
- Boollear
- Boollear is a process developed by Cox and Zhao (2014) that forms predictive rules to characterize the relation between term combinations in a set of documents and a given target or category. Because the terms form linguistic rules, the process is useful for both linguistic and numerical rule-based predicative engines.
- Captured response (lift) chart
- A measure of the accuracy of a predictive model. Given a target field that is either correctly predicted or incorrectly predicted, we measure the accuracy of the predictions by sorting the results from accurately predicted to not predicted.
- Chi-squared statistic
- The chi-squared statistic is one of the more commonly used statistics to assess whether the categorical attributes of objects in a data collection depend on one another; for example, does eye or hair color depend on the gender attribute in a collection of data?
- Collections or corpus
- Collections are any set of documents that are used in the text analysis.
- Dimensionality reduction
- This is the process ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.